GB/T 19277.1-2025 Chinese PDF (GB /T19277.1-2025) GB/T 14600-2025 GB/T 17812-2025_Chinese: Determination of vitamin

GB/T 17812-2025_Chinese: Determination of vitamin E in feeds - High performance liquid chromatography (Chinese: 饲料中维生素E的测定 高效液相色谱法)

GB/T 18029

English versions: GB/T 21121-2024

English versions: GB/T 16605-2024

GB/T 22452-2025_Chinese: General specification of non-linear optical borate crystal devices (Chinese: 硼酸盐非线性光学单晶元件通用规范)

GB/T 19277.1-2025 Chinese PDF (GB /T19277.1-2025) GB/T 14600-2025 GB/T 17812-2025_Chinese: Determination of vitaminGB T 19277. 1 2025_Chinese: Determination of the ultimate aerobic biodegradability of plastic materials under conctrolled composting conditions Method by analysis of evolved cabon dioxide Part 1: General method (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19277. 1 2025